Stephen Strasburg is dealing with tightness in his right (pitching) forearm, Washington Nationals manager Davey Johnson said Monday night.

Strasburg was prescribed medication after being examined by a doctor following the Nats’ 3-2 loss to the Braves in Atlanta. Strasburg pitched six innings but looked uncomfortable at times on the mound.

Johnson said it was too early to tell whether Strasburg would make his next scheduled start, but Strasburg told reporters he would not skip a turn.

"I'm not missing my next start," he said. "I'll tell you that right now."

Strasburg threw 93 pitches (53 strikes) Monday and allowed two runs on six hits. He walked four and struck out eight. Johnson said Strasburg "didn't look right" to him and "was shaking his elbow more frequently," which is often a sign of discomfort or pain.

"His command was way off, so I knew something was off," Johnson said.

Strasburg insisted he "felt good" physically but struggled with his control.

Asked why he was shaking his arm, he said, "You just try to stay loose."

The 24-year-old right-hander underwent Tommy John surgery on his right elbow in 2010 and missed most of the 2011 season. The Nationals chose to shut him down last September after 159 1/3 innings. He was unavailable for the playoffs, which became a sore spot for Strasburg, some Nats players and many fans, especially after the team was eliminated in the NLDS.